Configure an MLT

Perform this procedure to create and configure an MLT.

Before you begin

See MLT and SMLT Configuration Requirements to understand the commands you can use to add VLANs to an LACP-enabled MLT. Ensure you use the correct command to avoid the LACP churn condition.

Procedure

  1. Enter Global Configuration mode:

    enable

    configure terminal

  2. Create an MLT:

    mlt <1-512>

  3. Optional: Set the private VLAN type for the MLT:

    mlt <1–512> private-vlan <isolated|promiscuous|trunk>

  4. Add a VLAN to the MLT:

    mlt <1-512> vlan <1-4059>

  5. Optional: Change the name of the MLT:

    mlt <1-512> name WORD<0-20>

  6. Enable trunking on the MLT:

    mlt <1-512> encapsulation dot1q

  7. Enable the MLT:

    mlt <1-512> enable

  8. Display the MLT configuration:

    show mlt <1–512>

Examples

Create MLT 40. Configure the private VLAN type for MLT 40 to isolated. Add VLAN 10 to the MLT. Enable the MLT.

Switch:1(config)#mlt 40
Switch:1(config)#mlt 40 private-vlan isolated
Switch:1(config)#mlt 40 vlan 10
Switch:1(config)#mlt 40 enable

Display the MLT configuration:

Switch:1(config)#show mlt 40
==========================================================================================
                                    Mlt Info

==========================================================================================
                        PORT    MLT   MLT        PORT         VLAN
MLTID IFINDEX NAME      TYPE   ADMIN CURRENT    MEMBERS       IDS
------------------------------------------------------------------------------------------
40   6183  MLT-40        access  norm   norm                    10

               DESIGNATED   LACP      LACP
MLTID IFINDEX  PORTS        ADMIN     OPER
------------------------------------------------------------------------------------------
40      6183    null          disable   down

                                                            WHICH PORTS
             WHERE      LOCAL             REMOTE            PROGRAMMED
MLTID NAME   CREATED    PORT MEMBERS      PORT MEMBERS      IN DATA PATH
------------------------------------------------------------------------------------------
40    MLT-40   LOCAL                                          NONE

               ENCAP                          PVLAN        VID
MLTID IFINDEX  DOT1Q     LOSSLESS   PVLAN     TYPE         TYPE         FLEX-UNI
------------------------------------------------------------------------------------------
40     6183     disable   disable    enable   isolated    secondary     disable

Variable definitions

Use the data in the following table to use the mlt command.

Variable

Value

enable

Creates and enables a new MLT.

encapsulation dot1q

Enables trunking on the MLT.

member {slot/port[/sub-port] [-slot/port[/sub-port]] [,...]}

Adds ports to the MLT.

Identifies the slot and port in one of the following formats: a single slot and port (slot/port), a range of slots and ports (slot/port-slot/port), or a series of slots and ports (slot/port,slot/port,slot/port). If the platform supports channelization and the port is channelized, you must also specify the sub-port in the format slot/port/sub-port.

<1-512>

Specifies the MLT ID.

name WORD<0-20>

Configures the name for the MLT.

private-vlan {isolated|promiscuous|trunk}

Specifies a private VLAN type for the MLT.

vlan <1-4059>

Specifies a VLAN ID to add to the MLT.
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